RATIO
Ratios compare quanities. They are usually written in their simplest form.
To simpify a ratio you divide both sides by the same number.
To simpify a ratio you divide both sides by the same number.
Ratio Problem 1
A plan of a doll’s house is drawn to a scale of 1:12. If the door in the plan measures 1.5 cm, what is the actual height of the door in the doll’s house ? |
Ratio Problem 2
Jake has three shirts for every pair of suit trousers he owns. He has a pair of trousers for every day of the week. How many shirts does he own? |
Ratio Problem 3
The ratio of boys to girls at the basketball game is 8:5. There are 30 girls. How many more boys are there than girls? |
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Ratio Problem 4
John and Mary put money together on the National Lottery every week. John puts in £8 and Mary puts in £6. One week they manage to win £17920. How much money should each person get as their fair share of the winnings? |
Ratio Problem 5
Cement, sand and stones in the ratio 2 : 2 : 5 are needed to make concrete. If 720 cubic metres of concrete is required, what amount of each material will be needed? |
Ratio Problem 6 (HARD)
Green paint is made by mixing blue and yellow in the ratio 3 : 2. In stock, a shop has 152 litres of blue paint and 97 litres of yellow paint. How many litres of green paint can be made? |